Question

the value of a machine depreciates at the rate of 10% per annum. it was purchased 3 years ago. if its present value is 291600, for how much was it purchased?

Answer 1

Hey Vidhi !

Let the Purchased price=100X
After 1 year.. Price will = 100X -10% of 100x
= 90x..
After 2 years.. Price will=90x-10% of 90x
= 81x
after 3 years.. price will= 81x-10% of 81x
=72.9x.._______1

But value after 3 years is 291600_____2

By comparing 1 and 2

72.9x= 291600
x = 4000
So Purchased price= 4000*100
=400000

Hope its helps..

and mark it as brainliest answer!